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The "power of one" is among the most important principles for anyone delivering customer service to understand. (No one ever explained it to me when I was getting started, and it would have been so helpful!) Let's take a look.
Customer service teams come in all sizes—from a few people in a small office, up to thousands that are part of customer contact centers spanning multiple locations. If your team is on the small side, it's easy to see how one person significantly impacts service to customers. But when it reaches a few dozen agents or more, you may think that one person couldn't make much of a difference. Au contraire.
Every person has a significant impact on customers and other employees.
To illustrate, consider a contact center example—say, a group of agents handling inbound customer service issues. Here, I ran a table based on the queuing formula Erlang C. (If you haven't heard of Erlang C, it is a formula with a funny sounding name that has long been used by organizations across the world to calculate staffing requirements when queues are involved—contact centers, grocery stores, security checks or any other; it's very accurate when used correctly.)
I plugged in 250 customer interactions (these could be telephone calls, video calls, walk-in customers, or other conversations). Let's assume they take an average 3.5 minutes to handle. Your numbers could be anything—this is just an example.
Take a look at the impact of different staffing levels!
250 customer interactions in the half hour
Average handing time is 3.5 minutes
As you can see, 30 agents will provide a service level of 24% answer in 20 seconds. Service level is a common objective for accessibility—it measures how quickly customers can get through. Here, only 24% of customers reach an agent within 20 seconds.
ASA, which is an abbreviation for average speed of answer, is another way to measure accessibility. Here, ASA is over 200 seconds. And look at occupancy—that's the percent of time agents are handling contacts versus waiting for them to arrive. When occupancy gets too far into the 90% range over much of a day, agents begin to burn out. And (whoa!) it's 97%.
With 31 agents, things improve dramatically. Service level jumps to 45% (still not great, but almost double). Average speed of answer drops to 75 seconds, and occupancy goes down to 94%.
Yes, one person makes that much difference on customers and the rest of the team! Adding one more person yields another big improvement.
As you can see, if let your eyes follow the rows down the table, there's a point at which adding agents doesn't help much, because service is already good. You get into what's called the law of diminishing returns.
Just remember, when queues back up, everybody makes a big difference! Each person has a significant positive impact on customer wait times—a ripple effect far beyond the customers they serve directly. Knowing about these dynamics helps employees understand why schedules are a big deal and why schedule adherence matters.
Experienced customer service employees will correctly point out that the power of one also has a qualitative aspect. Just consider the ripple effect of customer reviews or publicity (good or bad) that can come from any interaction.
An American Express study found that consumers tell 21 friends on average about a bad service experience. And we've all seen videos of bad experiences that went viral.
And positive word of mouth builds powerful brands. Companies such as the Cheesecake Factory, REI, and Red Bull indicate that up to 70% of their new customers are obtained through customer referrals. When you give a good customer service experience, you're creating a powerful marketing force your company.
The power of one principle is as important as ever, given proliferating contact channels and heightened customer expectations for quick and easy service. My encouragement is to keep it front and center with your team.